Glass-working.



M. K. HOLMES.

I GLASS WOBKING.

APPLIGATIOH FILED 110V. 22, 1912.

1,133,244. Patented Mar. 23, 1915.

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HMMMJ lli ' sanas ,maar o T E. EOLMES, OF MUNCIE, ASSIGNOB T0 HEMINGRAY GLASS COMPANY,

0F MU'NGE, A CUB-POBATION 0F KENTUCKY.

GLASS-WORKING.

Specification of Letten Patent.

i Patented Mar. 23, agili.

To all whom it may concern.'

Be it known that I, Minor K. H onmas, a citizen of the United States, residing at iyiuncie, in the county of Delaware and State of indiana, have invented a new and use ful Improvements in Glass-Working, of which the following is a s ecifcation.

it has heretofore proposedto deliver a small charge of molten glass from a furnace to a preliminary receptacle and to thereafter mechanically deliver some lor all of such charge into a forming mold, either for the purpose of immediately producing a finished article, or for reducing a parison which, in turn, would blown to desired shape. In practice 'it has Ibeen found that, immediately upon the deposit of a limited charge of molten lass in a receptacle there is formed a chille skin wherever contact has been had withthe receptacle and that this chilled skin can not be radicall or suddenly deformed and that the entire-c iarg'e can not be, with commercial success, delivered into a arison mold in suoli condition es tobe fit or a subsequent manipulation by blowing.l

The object of m present invention is, therefore, to provi e a new mode of procedure, and, incident thereto new coperating mechanism by which forming molds may be charged with molten glass referably that which has been delivered irectly from a furnace or large supply pool) which has not come into contact with any other structure.

The accompanying drawings illustrate, somewhat diagrammatically, a mechanism by means of which my invention may be practised.

Figure 1 is a plan of a manually operated machine; Fig. 2 a side elevation; Ii'ig. 3 ii fragmentary vertical -section showing the manner of automatic delivery of molten glass from the furnace to a charge-receptacle; Fig. 4 a vertical section showing the association of filled charge-receptacle with ii primary mold.

Except for the peculiarity of relationship between tbe cl ar e-recoptacle und the primary mold th etails of mechanism, and whether their manipulation he manual or mechanical, semi-automaticvor automatic.. are immaterial and it should. be understood that l have, in the drawings of this ii iplioiition, illustrated n vcry simple turni oll bundopcratcd machine because the 'production of an automatic machine by'the usc of well known forms o f mechanism in combination with my ini rovenieiits, will be well within the range o skill of the nvcrage nicclmiiic familiar with glass working machinery.

In the drawings indicates any om` of a series of charge-receptacles carried b v u rotary table 11 and ari-an ed to como. successively under a stream o molten glass 12 coiivenientl flowing continuously from the furnace. No stream cutting,r mechanism.- iieed necessarily be )rovided because, when the table 11 is moved the stream will merely hang from one receptacle to the next and either break of its own weight or b v menne of the heat of chamber 13 in which the delivery conveniently takes place.) Each charge receptacle 10 is conveniently larger at its lower end and provided with u movable bottoin 1l. The upper end of receptacle 10 is so formed us to freely receive the lower end of the primary moldl, the difl'eience in diameter being such that there will be ample room for the chilled lskin 1G of the molten glass to lit` between receptacleand mold and also such that the glass cannot be squeezed out of the top of thereceptacle to an extent suflicient to interfere with the proper delivery of the molten Yhiss into thc primary mold. lThe lust con itioii can be accomplished by bringing the upper end of the receptncle'riear enough to the primary mold, either by an overlmnging flange 10v or otherwise.

Any suitable means may be provided to bring the filled charge-receptacle and the riinury mold together, and in the drawings have shown a plurality of such molds, together with enacting neck-molds 17, mounted on a rotary head 18 carried by ii vortically movable shaft 19 which is supported on the saine base 20 which supports t-.iblc 11. Shaft 19 is vertically rcciprociiicd by links 21. crank 222, shaft 23 und hund lover 24.

When u charge container, with its molten gliisanrrives at the pressing position tho dopending pin Q5 of bottoni 14 rests upon iinvil 2li und by that time ii skin 1li will have formed around ull of the chargiof molten glass except the top, und when the mohll is proJccted into the iiioltrn mrtul it will ox tend the formation of tbisvcbillod shin arrow-v ull of the touched portions of the top o1' Ibil olmrgo but..ln-ruili-|ca tho mold l5 iii of' muoirinlly loss diameter than tho cliiiiin-rocopn tacle, there ie no tendency d'irin the further projection of the mold, to rive this skin into the mold. On the contrar the 'skin remains in contact with the exterior of the mold and the interior of'the receptacle and virgin glass is squeezed up into the mold.

The necessary pressure for any height of object is obtained either by the resistance of the chilled and doubled skin 16 which lies between mold and receptacle, or by the flange 10.

ll hen the primary mold has been filled it is withdrawn from the receptacle and the surplus glass cut from the lower end of the mold by any suitable means, a handmanipulated knife being sucient. Then the priin ary. mold (conveniently an ordinary hinged section mold)V may be withdrawn from the parison 30 and blow-mold sections 31 and bottom 82--also carried by head 18,-- may be broufht intoiplace for further manipulation of? the parison. Bottom 14 will then be o cned, the surplus glass in receptacle 10 discharged to be remelted, and the operation repeated.

I claim as my invention:

. 1. That improvement in the art of glass working which consists in depositing a charge of molten glass within a receiver and in thereafter bringing the charged receiver and the open ond of a mold to ether so as to submerge the open mold-en while maintaining a portion of glass between the receiver and the submerged portion o'f the mold and preventing movement of that portion of glass toward the interior of the mold.

nine hundred and 2. In glass working, the combination of a charge-receivei' and an open-ended mold, said mold having its open end submergible in molten glass contained in the receiver, said end being of an external diameter less than the internal diameter of the glass-holdin portion of the receiver b an ,amount su cient to accommodate the c l 1ed skin of the glass formed by contact with the receiver und mold, the receiver and mold .being so formed as to prevent material e]ec tion of glass from the receiver and to produce ejection of the center of the molten glass into the mold by reason of submergence of the receiving end of the mold.

In glass working, the combination of a charge-receiver and an open-ended mold, said mold having its open end submergible in molten glass, contained in the receiver, through an open end of the receiver having a diameter suliiciently approximating the cxtema-l diameter of the moldto prevent material outflow of glass there-between while accommodating the chilled skin'of glass between the container and exterior of the submergible ortion of the mold, whereby How of lass 'rom the container into the mold wil take place during submergence of the open end of the mold.

In witness whereof I have hereunto set my hand and seal at -Muncie, Indiana, this 19th day of November, A. D. one thousand twelve.

NOT K. HOLMES. [1.. a] Witnesses:

EvAN L. Kimm, Bam. H. Warm.

Qegiee e: this pateat may be obtained ter ave cents nach, by addressing the Qeiamudem of meente,

' Washington, D. 0. 

